Question

harlan rides the bus $\frac{1}{4}$ mile and then walks $\frac{1}{8}$ mile to get home from school.
subtract to find how much farther harlan rides the bus than walks.
$\frac{1}{4} - \frac{1}{8} = \frac{?}{?}$ mile

Explanation:

Step1: Find common denominator

Rewrite $\frac{1}{4}$ with denominator 8:
$\frac{1}{4} = \frac{1\times2}{4\times2} = \frac{2}{8}$

Step2: Subtract the fractions

Subtract the numerators, keep denominator:
$\frac{2}{8} - \frac{1}{8} = \frac{2-1}{8} = \frac{1}{8}$

Answer:

$\frac{1}{8}$ mile